A semiconductor device having an electrically erasable and programmable nonvolatile memory, for example, a rewritable nonvolatile memory including memory cells arranged in rows and columns and disposed to facilitate both flash erasure as well as selective erasure of individual units of plural memory...http://www.google.com/patents/US6804152?utm_source=gb-gplus-sharePatent US6804152 - Method for manufacturing a printed board on which a semiconductor device having two modes is mounted
